. Railway mechanical engineer . 83 83 1,949 1916 1,732 70 1,802 37 37 1,839 1917 1,924 31 1,955 45 45 2,000 1918 1,480 92 1,572 1 1 1,503 1919 306 85 391 160 160 551 1920 168 1,440 ■Includes Canadian output. ■i^Includes Canadian output and equipment built in company shops. car list only Ijecause they will presumably be operated in pas-senger trains. South America and China were the largest foreign buy-ers. The Argentine Government ordered 53, the ChileanState Railways ordered ten, and railways in Colombia, Tientsin-Pukow of China gave us an order for 45. Itis noteworthy that in th
. Railway mechanical engineer . 83 83 1,949 1916 1,732 70 1,802 37 37 1,839 1917 1,924 31 1,955 45 45 2,000 1918 1,480 92 1,572 1 1 1,503 1919 306 85 391 160 160 551 1920 168 1,440 ■Includes Canadian output. ■i^Includes Canadian output and equipment built in company shops. car list only Ijecause they will presumably be operated in pas-senger trains. South America and China were the largest foreign buy-ers. The Argentine Government ordered 53, the ChileanState Railways ordered ten, and railways in Colombia, Tientsin-Pukow of China gave us an order for 45. Itis noteworthy that in the case of the Chilean and Tientsin-Pukow cars, all-steel construction was specified. Of the Total of 1,739 passenger cars owned by the Pacificsystem of the Southern Pacific, 890 are all-steel, 812 are woodand 37 are of steel underframe construction. The first steelcoach, built as an experiment, was completed in the Sacramentashops of the company in 1906, and no wooden passenger carshave been built by the company since The First Steam Turl^ine Locomotive THE first steam turbine locomotive actually constructedwas designed in 1907 by Professor Belluzzo of theEcole Polytechnique, Milan, Italy, and given its mitialtrial run in 1908 at the works of the Societe AnonymeOfficine Meccaniche, Milan. An old four-wheel standard gage switching locomotive wa.,emploved for the purposes of the test, the c\linders and otherparts of the reciprocating engine being removed and turbmesand npcessar\ control mechanism substituted. This engmehad wheels, a wheel base of 6 ft. 6)4 in., aheating surface of 646 sq. ft. and carried a boiler pressureof 145 lb. per sq. in. The weight after conversion was 57,300 lb. . J Four turbines were emploved, one turbine being gearedto each enri of the two Steam was admitted from theboiler to the fonvard turbine on the right hand side, andafter passing through this turbine it was further expandedthrough the rear turbine on the right han
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